fix(babel): add stage2 support

Walker Leite · Walker Leite · commit c95f47c1ac74 · 2018-06-15T16:30:41.000-03:00
diff --git a/template/.babelrc b/template/.babelrc
@@ -9,7 +9,8 @@
           ],
           "node": "8"
         }
-      }]
+      }],
+      "stage-2"
   ],
   "plugins": [
     [
